EP 1691053 A2 20060816 - Control circuit for capacitor discharge ignition system
Title (en)
Control circuit for capacitor discharge ignition system
Title (de)
Steuerschaltung für Kondensatorentladungszündsystem
Title (fr)
Circuit de commande pour système d'allumage à décharge de condensateur
Publication
Application
Priority
US 5423805 A 20050209
Abstract (en)
A capacitor discharge ignition (CDI) system for a light-duty spark ignition combustion engine includes an analog control circuit having a charging circuit, a trigger circuit and a shutdown circuit. In response to activation of a kill-switch, the shutdown circuit causes a switching device to discharge an ignition capacitor. Through the use of an RC circuit, the switching device continues to be biased such that it prolongs the discharge of the ignition capacitor, thereby preventing it from storing charge for the upcoming ignition pulse. This generally continues until the engine has come to a stop, at which time the engine can be immediately restarted without having to reset anything. The control circuit may also include engine speed limiting and ignition timing features.
IPC 8 full level
F02B 63/02 (2006.01); F02P 1/08 (2006.01); F02P 3/08 (2006.01); F02P 11/02 (2006.01)
CPC (source: EP US)
F02P 1/086 (2013.01 - EP US); F02P 3/08 (2013.01 - EP US); F02P 11/025 (2013.01 - EP US)
Designated contracting state (EPC)
DE IT SE
DOCDB simple family (publication)
US 7069921 B1 20060704; DE 602006002285 D1 20081002; EP 1691053 A2 20060816; EP 1691053 A3 20070228; EP 1691053 B1 20080820; JP 2006220147 A 20060824
DOCDB simple family (application)
US 5423805 A 20050209; DE 602006002285 T 20060119; EP 06001137 A 20060119; JP 2006020145 A 20060130